Skip to Content
Merck
CN

28-4010

Sodium metabisulfite

≥95.0%

Synonym(s):

Sodium disulfite, Sodium pyrosulfite

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
Na2S2O5
CAS Number:
7681-57-4
Molecular Weight:
190.11
UNSPSC Code:
12352300
PubChem Substance ID:
329753191
EC Number:
231-673-0
MDL number:
MFCD00167602
Assay:
≥95.0%
Grade:
SAJ special grade
Form:
powder

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI key

HRZFUMHJMZEROT-UHFFFAOYSA-L

InChI

1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

SMILES string

[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O

grade

SAJ special grade

assay

≥95.0%

form

powder

availability

available only in Japan

pH

4.5 (20 °C, 50 g/L)

mp

>300 °C (lit.)

Looking for similar products? Visit Product Comparison Guide

Related Categories

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

supp_hazards

EUH031

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
U7962
U8748
U5222
U5145
U8865

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

I U Nieves et al.
Bioresource technology, 102(13), 6959-6965 (2011-05-03)
Microaeration (injecting air into the headspace) improved the fermentation of hemicellulose hydrolysates obtained from the phosphoric acid pretreatment of sugarcane bagasse at 170°C for 10 min. In addition, with 10% slurries of phosphoric acid pretreated bagasse (180°C, 10 min), air
Noemí de Luna et al.
Disease models & mechanisms, 8(5), 467-472 (2015-03-13)
McArdle disease, also termed 'glycogen storage disease type V', is a disorder of skeletal muscle carbohydrate metabolism caused by inherited deficiency of the muscle-specific isoform of glycogen phosphorylase (GP-MM). It is an autosomic recessive disorder that is caused by mutations
Rosie F Davies et al.
Clinics in dermatology, 29(3), 311-315 (2011-04-19)
Human skin is exposed to a large variety of cosmetic allergens. Most allergic contact dermatitis occurs after exposure to fragrance, preservatives, and hair dyes. Such reactions can often be occult. As a result, a high index of suspicion is needed
Juan García-Gavín et al.
Contact dermatitis, 67(5), 260-269 (2012-10-09)
Sulfites, preservatives and antioxidants used in the cosmetic, pharmaceutical and food industry are contact allergens whose relevance seems to be difficult to establish. To perform a retrospective study on patients patch tested with a sulfite. Materials and methods. Between 1990
Natalia Mosconi et al.
ChemMedChem, 9(6), 1211-1220 (2014-05-09)
We report the synthesis, characterization, antibacterial and antifungal activities, phytotoxicity, and genotoxicity of two new complexes of silver(I) with sulfachloropyridazine (SCP), one of which is heteroleptic with SCP and SCN(-) ligands (Ag-SCP-SCN), the other of which is homoleptic (Ag-SCP); furthermore
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service